Improved machine for making wrottght-iron chairs for railroads



@sind @time dnitrd gewiss -WILLIAH VAN ADEN, 0l" -POUGHKEEPSIE NEW YORK.

Leners Pawn N 102,068, met An-u 19, 1870.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.

Be it known that I, WILLIAM YANAxDEN, of Poughkeepsie, in the county ofDutchess and State of New York, have invented a Machine for MakingVVrought-Metal Railroad-Chairs; and I do -hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings making part o1 thisspecification, in which- Figure 1 is a front view of the machine,showing a finished chair vbetween the dies and tongue and tonguestock.

Figure 2 is a similar view of the same parts, show ing a flat plate orchair-blank in position upon the dies for being bent into shape.

Figure 3 is atop view of the dies and their operating parts.

Figure 4 is aperspective view of a. chair-plate as produced by themachine.

imilar letters oi; reference indicate corresponding parts in the severalfigures.

My invention consists in a combination of devices adapted for producingthe wrought-iron railroad-chair clamp, known as the Seri-ell rail-chair,as will be hereinafter explained.

To enable others skilled in Athe art to understand my invention, Iv willdescribe its construction and operation.

In g. 4 of the accompanying drawings I have represented one of theswaged chair-plates. Each chair is composed of two of thcseplates, whichare applied to the rails by means of bolts and nuts applied to thevertical flanges s s, above and below the rail-base, so as to draw theplates np closely on opposite sides ot' the rails, and thus alord airmsheath and support for the rails. i

A represents a horizontal transverse bed, which is mounted upon asuitable frame, and adapted toserve .as a support for the dies and theiroperating. parts.-

a a are two anti-friction rollers or rolling-beds, which are supportedby their ends upon the upper edges of the sides of the bed A.

These rollers extend transversely across the bed A, and aord supportsfor two movable dies, B B', whether these dies be extended, as shown iniig. 2, or brought nearer each other, as shown in fig. l.

The dies B B are constructed with supporting-sur faces e e, upon whichthe flanges (lettered s s) ot' the vblank are supported, both before plthe operation of swagiug or bending, and during this operation.

The inner end f of the die B is beveled to form the Iinclined portion sof fig. 4, and the corresponding end g of the die B is at right anglesto the plane e, for producing the portion s2, tig. 4. These dies arescored or beveled beneath their inner ends, and these surfaces rest onthe respective rollers a a, and cause the dies to rise as they are movedtoward each other, and to descend as theyrecede.

By means of extensions b b of the two dies they are guided between thesides A A of the bed A, and, by means of studs b b' and slots c c, theouter ends of the extensions b b are guided and prevented from iising ordescending.

For moving the two dies B Bendwise the extension-joints or toggles E Emay be employed', operated by means of levers F F and connecting-arms hh.

Ilhe dies B B are so constructed that, when they are in posit-ion forreceiving a flat chair-blank, indicatedin black in Iig.V 2, theywillallow the blank to be quickly adjusted upon the flatsupporting-surfaces e c, and to he held iii proper position thereon forbeing presented to a forming-tool, j.

The forming-tool 7' is in form the counterpart of the flanges of the`rail-bases for which the chairs are adapted, and this tool is securelyfixed to an overhanging stock, C, which is applied to an elevated head,D, of the main frame.

The horizontal surfaces i i of the tool-stock C cor; respond to the flatsurfaces e e on the dies B B', so that, at the termination of the lastupward movement of the dies in producing a chair-plate, the flanges s s`of such plate will be squeezed between the said surfaces 'i i and e e,as shown in fig. 1. g

l-I-t will b seen, from the above description, that I adapt the dies BB' to serve as beds and supports for the' blank from the commencement tothe -termination of the swaging operation.

,These dies simultaneously rise, carrying with them the blank, andbending the'blank into proper shape about the sides ot' thetool ortongue j, as shown iu g. la d I After the operationofforming achair-plate the dies are caused to recede from each other; at the sametime their inner ends descend, and allow a longitudinally-reciprocatinghook, P, to discharge 'the chair-plate.

4Before the ehailr-blanks are introduced into the machine they should heproperly heated, and, as the blanks are introduced by tongs in the handsof al1 attendant, this person may knock thefinished plates out of themachine with his tongs, and thus dispense with the discharging-hook l).

While I prefer to employ toggles E E for operating the dies B B', I donot conne myself to their use, as other well-known mechanical devices,adapted for giving eudwise movements to said dies, may be adopted; nordo I contine myself to the rolling-beds a a, as these may be dispensedwith, and double inclined beds,

-or other equivalent means, employed in their stead.

Having described my invention,

y What I claim as new, and desire to secure by Letters Patent, is 1. Theconverging and vertically-moving jaws B B' for supporting, retaining,and elevating the chairblank or plate during the bending andshaping-operation, substantially as described.

2. The combination of the converging andvvertically-moving jaws B B' anddie j, substantially in the manner and for the purpose described.

3. The combination of the die j, jaws B B', and

